67 lines
1.5 KiB
JavaScript
67 lines
1.5 KiB
JavaScript
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var Backbone = require('backbone');
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/**
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* Model that represents a visualization export (v3)
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*/
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module.exports = Backbone.Model.extend({
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initialize: function (attrs, opts) {
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if (!attrs.visualization_id) throw new Error('visualization_id is required');
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if (!opts.configModel) throw new Error('configModel is required');
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this._configModel = opts.configModel;
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},
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urlRoot: function () {
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var baseUrl = this._configModel.get('base_url');
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return baseUrl + '/api/v3/visualization_exports';
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},
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requestExport: function () {
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this.save(null, {
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success: this._requestExportSuccessHandler.bind(this)
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});
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// TODO add metrics for private and public exports
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},
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cancelExport: function () {
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this._interrupt();
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},
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_requestExportSuccessHandler: function () {
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this._pollPID = setInterval(function () {
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this.fetch({
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success: this._checkState.bind(this),
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error: this._errorHandler.bind(this)
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});
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}.bind(this), 2000);
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},
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_checkState: function () {
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if (this.get('state') === 'complete') {
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this._finishExport();
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} else if (this.get('state') === 'failure') {
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this._errorHandler();
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}
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},
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_finishExport: function () {
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clearInterval(this._pollPID);
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},
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_errorHandler: function () {
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this._interrupt();
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throw new Error('There is a problem with your export. Please try again.');
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},
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_interrupt: function () {
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clearInterval(this._pollPID);
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this.set('state', 'failure');
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}
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});
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